Smooth geometries with four charges in four dimensions

A class of axially symmetric, rotating four-dimensional geometries carrying D1, D5, KK monopole and momentum charges is constructed. The full ten dimensional description of these geometries is found to be free of horizons and singularities. The geometries are candidates to be the gravity duals of microstates of the (0,4) CFT describing the bound state system of D1 branes, D5 branes and KK monopoles. These solutions are constructed by performing singularity analysis on a suitably chosen class of solutions of six-dimensional minimal supergravity written over a Gibbons-Hawking base metric. The properties of the solutions raise some interesting questions regarding the CFT